ci: clone cal-shared locally for Docker build

Gitea archive endpoint returns 500. Clone cal-shared repo
and use as local file dependency in Docker build.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitea/workflows/ci.yml

@@ -31,7 +31,8 @@ jobs:
 
       - name: Build and push image
         run: |
-          docker build --network=host -t ${{ env.IMAGE }}:${{ env.IMAGE_TAG }} -t ${{ env.IMAGE }}:latest .
+          git clone --depth 1 http://jeffemmett:${{ secrets.REPO_READ_TOKEN }}@server:3000/jeffemmett/cal-shared.git cal-shared
+          docker build -t ${{ env.IMAGE }}:${{ env.IMAGE_TAG }} -t ${{ env.IMAGE }}:latest .
           echo "${{ secrets.REGISTRY_TOKEN }}" | docker login ${{ env.REGISTRY }} -u ${{ secrets.REGISTRY_USER }} --password-stdin
           docker push ${{ env.IMAGE }}:${{ env.IMAGE_TAG }}
           docker push ${{ env.IMAGE }}:latest

Dockerfile

@@ -3,11 +3,12 @@ FROM node:20-alpine AS builder
 
 WORKDIR /app
 
-# Copy package files
+# Copy package files and local dependency
 COPY package.json package-lock.json* ./
+COPY cal-shared/ ./cal-shared/
 
-# Replace Gitea public URL with internal for CI builds
-RUN sed -i 's|https://gitea.jeffemmett.com|http://localhost:3000|g' package.json
+# Replace Gitea archive URL with local copy for CI builds
+RUN sed -i 's|https://gitea.jeffemmett.com/jeffemmett/cal-shared/archive/main.tar.gz|file:./cal-shared|g' package.json
 
 # Install dependencies
 RUN npm install